Note that the key in Budd's Flora
allows either of the following characteristics for danicus, providing
separate paths to the same species

plants low, cushion-like, matted or
straggling

plants with erect or decumbent stems

Note that Flora of Alberta keys danicus
as having the following characteristics:

plants with elongated stems, either
prostrate or erect; not plants with short stems, cushion-like,
low-tufted, or matted

main stems prostrate, or decumbent at
base and ascending; not having main stems erect from the base and mostly
tall

main stems decumbent at base and
ascending; not prostrate with wide-spreading stems

low plants, often mat-forming

Note that two of the five petals in
flowers from family Leguminosae are usually united along one
edge. The keys in the flora appear to make conflicting statements
about the petals being or not being united. However, legume
flowers are unmistakable.

Danicus Characteristics

plants with slender rootstalks, not
with taproot and caudex

stems 5-30 cm long

leaves with at least 7 leaflets

leaflets not spine-tipped

pubescence of the leaflets composed of
basifixed, not malpighian, hairs